J160 J170 reality.

[dingduck]

Thanks Merv, but you won't see much from me , I hate typing. Did mean to ask you what Terry thought of it???

 

Macnoz, thanks, that would mean empty at about 325kg - better load then too.

 

Skydog, some J230 (factory built LSA NVFR version) Flight Manual numbers for you:

 

the following are RPM, litres/hr, TAS:

 

2600, 15, 100

 

2700, 18, 107

 

2800, 23, 110 - 75%

 

2850, 25, 115

 

2900, 28, 116

 

We tend to use 2700 RPM to limit fuel burn (& noise) - we are often wt limited to around 70 liters (empty wt 376.6 kg).

 

If a clean J230/ J400 will go close to VNE on 6 cylinders, why go looking for 8? I assume the 140+ / 150+ figures are TAS at altitude on a warm day - VNE is 140 KIAS.

 

Handling: most seem to prefere it over the J160 - climb is good but can get hot - so increase IAS, visibility better (more back windows - less stress in a busy CCT), landing not quirky - Glide & Vref 65 KIAS (same as J160) but stall lower - 40 & 45 KIAS. BUT all this for more $ so tends not to be the basic trainer which is probably a pity. Cockpit seems narrower - is this real or imagined??

 

Ultralights, J160 figures may vary because flying school ACFT may have bigger jets in the carby to improve cooling.

 

 

[skydog]

Thanks Dingduck, I didnt even think about the VNE 140 what a dummy. Yes not able to go far on 70 litres of juice at what I guess is around 30 litres consumption per hr. The climb out is pretty good from memeory so keeping the engine cool with a lower angle of climb is not really an issue is it.

 

Great information, thanks.

 

 

[Guest brentc]

If you're referring to the cockpit of the J230 being narrower than the J160/170, then yes it is indeed and you are not imagining anything! The J230 is based on the original LSA fuselage. The J160 came much later and is much wider and deeper. If they had built the J230/430 based on the J160 wider fuse that would make a LOT of people very happy. Perhaps one day they will widen it up. I notice the J120 has a 30mm higher fuselage than the LSA, so there seems to be subtle improvements all the time.

 

My figures for airspeeds are indicated, not TAS. Was up today at MTOW with 3 POB and full fuel, was pulling 120 knots indicated at 1,500ft and 135 on descent into Moorabbin. My passengers were flying a 172 until the starter failed so I gave them a ride back to Moorabbin. Needless to say they were most impressed with the 'little' Jabiru that they didn't even think had a seat in the back. We were pulling 700fpm climb at 105 knots and 1,200fpm at 90 knots. They are now contemplating purchasing one after I told them what it costs compared to the $190 an hour they were paying.

 

 

[Guest The Bushman]

I like my J170 too and It cruises at 2850 at 100 kts at at 14.3 ltrs /Hr

 

and if you don,t beleive me I can take photo to prove it and in the hotter weather the climb is better kit price about $1000.00 bucks more:hittinghead:

 

The Bushman